40118697 has 12 divisors (see below), whose sum is σ = 58340100. Its totient is φ = 26565408.

The previous prime is 40118677. The next prime is 40118707. The reversal of 40118697 is 79681104.

It can be written as a sum of positive squares in 2 ways, for example, as 21013056 + 19105641 = 4584^2 + 4371^2 .

It is not a de Polignac number, because 40118697 - 2¹⁶ = 40053161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40118677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13618 + ... + 16299.

It is an arithmetic number, because the mean of its divisors is an integer number (4861675).

Almost surely, 2^40118697 is an apocalyptic number.

It is an amenable number.

40118697 is a deficient number, since it is larger than the sum of its proper divisors (18221403).

40118697 is a wasteful number, since it uses less digits than its factorization.

40118697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30072 (or 30069 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 40118697 is about 6333.9321909853. The cubic root of 40118697 is about 342.3331369689. Note that the first 3 decimals are identical.

The spelling of 40118697 in words is "forty million, one hundred eighteen thousand, six hundred ninety-seven".